To enhance modern morphological keys, micrographs and detailed drawings of the holotypes of Brevipalpus olivicola Pegazzano & Castagnoli, Brevipalpus rotai (Castagnoli & Pegazzano), and Brevipalpus mitrofanovi (Pegazzano) are provided, showcasing refined morphological features, along with ontogenetic changes in leg chaetotaxy. Furthermore, Brevipalpus olivicola is compared to Brevipalpus oleae Baker, since there are suspicions that it may be a synonym of B. oleae.

The Andean Páramos is one of the most exceptional ecosystems in tropical mountains of South America. Situated between about 3,000–4,800 meters altitude under extreme environmental conditions it harbors high levels of biodiversity and endemism. We investigated the phytoseiid fauna from two enclaves in Ecuador: wet páramos in the northern Carchi province and dry páramos at the base of Chimborazo volcano. We found ten species, describing eight of them as new to science: Amblyseius anchiops sp. nov., Neoseiulus lobatus sp. nov., N. trapezius sp. nov., Transeius castaneus sp. nov., T. confidens sp. nov., T. variabilis sp. nov., Typhlodromips buchelae sp. nov., and Typhloseiopsis humboldti sp. nov. Surprisingly, most of Amblyseiinae species show a remarkable morphological similarity although they belong to different genera. Their generic emplacement can only be achieved by minor differences in the length of some dorsal setae. This morphological resemblance is discussed in relation to the evolutionary processes that may have led to speciation in the páramos and with respect to the taxonomic practice, where the use of the traditional generic division of the family Phytoseiidae proposed by Chant and McMurtry poses uncertainties or even can be difficult to implement.

Paedonothridae Norton, Ermilov & Bayartogtokh fam. nov. is proposed as a new family of the oribatid mite hyporder Nothrina. It is monotypic, based on Paedonothrus reductus Norton, Ermilov & Bayartogtokh gen. et sp. nov., which was sampled from floating vegetation in a shallow lagoon in Kavaratti Atoll of the tropical Lakshadweep Islands, Arabian Sea, India. As such, it is the first known aquatic oribatid mite that is truly marine. It is easily distinguished by knife-like claws, wide separation of genital and anal valves, and reduction of genital papillae to a single small pair. The latter two are juvenile traits in other nothrines and, considering the many losses of body and leg setae, P. reductus appears to be the most paedomorphic known member of Nothrina. We argue for the inclusion of Paedonothridae in the superfamily Malaconothroidea and present a table of traits differentiating it from Malaconothridae and Trhypochthoniidae. While specimens are few, all are adult females, so P. reductus probably is thelytokous, like all other known members of the superfamily.

Two new tarsonemid species belonging to the genus Tarsonemus Canestrini & Fanzago, 1877 namely Tarsonemus parijatae Karmakar & Kayal sp. nov. and Tarsonemus parulae Karmakar & Kayal sp. nov. are described from specimens collected on leaves of Night Flowering Jasmine, Nyctanthes arbor-tristis L. (Oleaceae) and African Tulip Tree, Spathodea campanulata P.Beauv. (Bigoniaceae) from Chinsurah, West Bengal and Bengaluru, Karnataka respectively.